We disclose the synthesis, characterization, and catalytic application of a triphos-tagged, non-pincer-type tungsten complex. The pertinent W-based half-sandwich compound was used in the homogeneous hydrogenation of ketones and esters to afford the corresponding alcohols. Furthermore, the introduced base metal catalyst facilitated the conjugate reduction of enoates to yield the respective CC-bond-free esters. Most of the applied substrate ketones were convertible under very mild reaction conditions (room temperature, 5 bar H₂) in the presence of t–BuONa. The exchange of the cation in the auxiliary base from Na⁺ to Li⁺ turned out to be crucial for the successful reduction of the carbonyl ester group. The deployed organometallic complex is readily weighable and can be handled on the laboratory bench outside a sealed glove box system.

我们公开了三磷酸标记的非钳型钨络合物的合成、表征和催化应用。相关的基于 W 的半夹心化合物用于酮和酯的均相氢化以提供相应的醇。此外，引入的贱金属催化剂促进了烯酸酯的共轭还原，从而产生相应的无 C-C 键的酯。大多数应用的底物酮在非常温和的反应条件（室温，5 bar H ₂）下在t –BuONa 存在下可转化。辅助碱基中的阳离子从Na ⁺到Li ^+的交换结果证明对于成功还原羰基酯基团至关重要。部署的有机金属复合物很容易称重，可以在密封手套箱系统外的实验室工作台上处理。